the best part is at the end of the article:

In another example, callers asked if Medicare would pay for power wheelchairs. The answer depends, in part, on whether a beneficiary has enough upper body strength, or “trunk strength,” to propel a manual wheelchair.

But a Medicare operator, confusing trunk strength with the size of a car trunk, “incorrectly explained that Medicare would cover a power wheelchair only if a beneficiary had adequate space to put it in the trunk of his car,” the report said.